Synergy 2005+ Ford F-250/F-350 Super Duty 4x4 Caster Sleeves

Synergy Mfg is known for making solid suspension components for off-road vehicles. These caster sleeves are designed for 2005 and newer Ford F-250 and F-350 Super Duty 4x4 trucks. If you've installed a suspension lift on your Super Duty, you've likely noticed that the caster angle has changed, which can affect steering stability and return-to-center feel. These sleeves are a straightforward way to correct that geometry.

Made from durable steel, these sleeves install into the front axle housing. They work by changing the angle of the radius arm mounting point, effectively bringing the caster angle back into the factory specification or a desired range for lifted applications. This helps improve how your truck handles on the road, especially at highway speeds, and can make steering feel more predictable. They are a popular choice for Super Duty owners looking to dial in their suspension after adding lift kits.